Monsters are creatures that appear in the different mythologies. Some are evil, neutral and good.


Monsters are considered offshoots of gods (as many of them are descended from or related to them) or cursed beings that terrorize, fight, and often kill demigods and heroes. Monsters are "archetypes," born from the chaos and barbarism that always exists in the Western Civilization. This means that they are purely abstract entities and will merely reform in Tartarus and come back whenever their physical forms are destroyed. One example is when Percy kills the Minotaur on his first day realizing he is a half-blood. Four years later, he sees the Minotaur again in Kronos' army. This proves to be an ordeal for heroes, for after a monster is killed it can reappear and attack again, in any time period between weeks and hundreds of years. However, not every monster when killed goes to Tartarus. Some used to turn into yellow powder and vaporize on the spot, leaving a smell of sulfur and they reform after some time. In the case of satyrs, when killed they will be reincarnated as something else in nature, like a plant of some kind, though it should be noted that satyrs are nature spirits, similar to nymphs, which are different from monsters. They often serve as minions of evil and cause trouble for Olympus. Normally, since they can't hurt the gods directly, they go after their demigod children instead. However, some monsters, such as some Cerberus, Pegasus, and the Furies serve Olympus. There are other monsters like the Cyclopes, dragons, harpieshellhounds that work for Olympus or run wild on their own, and are not actively pursuing demigods unless they run into them. When some monsters are killed, they leave a trophy behind (called a Spoil of War) in the form of parts of its body, its clothing, or some kind of armament.

List of monsters


The Minotaur turning to dust.

Some monsters mentioned or seen include:


Species: Arai | Blemmyae | Basilisks | Centaur | Cyclopes | Dragon | Drakon | Empousai | Fire-Breathing Horse | Gegeines | Gemini | Ghoul | Giants | Gorgons | Harpies | Hekatonkheires | Hippalektryons | Hippocampi | Hyperborean Giants | Ichthyocentaur | Karpoi | Katoblepones | Keres | Laistrygonian Giants | Lycanthrope | Makhai | Merpeople | Myrmekes | Nikai | Nymphs | Pegasus | Satyrs | Stymphalian Birds | Telekhines | Scythian Dracanae | Sirens | Unicorns | Venti | Yales
Friendly Monsters: Argus | Blackjack | Briares | Bombilo | Chiron | Cottus | Don | Ella | Festus | Gleeson Hedge | Gray | Grover Underwood | Guido | Gyges | Lysas | Mellie | Mrs. O'Leary | Ophiotaurus | Peaches | Peleus | Porkpie | Rainbow | Scipio | Tyson | Tempest | Sssssarah
Enemy Monsters: Antaeus | Agrius and Oreius | Arachne | Cacus | Carthaginian Serpent | Charybdis and Scylla | Chimera | Chrysaor | Clazmonian Sow | Colchis Bulls | Echidna | Euryale | Geryon | Joe Bob | Kampê | Kekrops | Ladon | Lamia | Manticore | Medusa | Minotaur | Nanette | Nemean Lion | Polyphemus | Python | Sphinx | Stheno | Typhon | Trojan Sea Monster
Neutral Monsters: Carnivorous Sheep | Cerberus | Erymanthian Boar | Gray Sisters | Flesh-Eating Horse | Furies | Gryphon | Orthus | Skolopendra | Sybaris
Community content is available under CC-BY-SA unless otherwise noted.